Sherry Hill

Sherry Hill, DVM

Medical Director

Dr Sherry Hill prides herself on developing strong relationships with her clients. She loves getting to know people and their pets! She is passionate about helping senior pets lead a pain-free life. Plus, she has a soft spot for cats.

Clients compliment her friendly, straightforward demeanor. Dr Hill’s goal is to remove the confusion in veterinary medicine while offering quality medical care.

Pets love her calm demeanor. Dr Hill knows animals can feel uncertain about check-ups. So she uses Fear Free tactics like a gentle touch, a calm voice, and lots of treats to help pets feel their best. And she loves a good snuggle when a dog or cat is ready.

Dr Hill has additional training in dentistry. She stays up to date with evolving animal medicine through local and national conferences. Her favorite is the AVMA national veterinary conference.

Dr Hill completed her DVM at Colorado State University. In her free time, she cycles for fun and to raise money for the Livestrong Foundation. She also loves scuba diving and gardening. She has 2 dogs, Letty and Calvin, and 2 cats named Venus and Bruno Mars.

Sherry Hill

Mary Thai Sanchez

Hospital Manager

Mary’s collaborative leadership skills encourage teamwork, transparency, and personal growth. Clients appreciate that she sets high expectations for their pets’ care and that her team helps achieve these standards. Mary wants clients to know they are an integral part of the Firehouse family.

An advocate of pet comfort, Mary is Fear Free certified. She knows that vet visits can be stressful for the entire family, so she encourages her team to continue to provide the best, individualized care.

Mary is passionate about teamwork and collaboration. She leads by example and encourages her team to grow and find their strengths and passions. She knows that each team member brings their own wealth of knowledge, resources, and ideas to the Firehouse family.

After receiving a degree in Criminal Justice, Mary decided to use her passion for leadership to help improve animals’ lives. She began her veterinary career as a kennel assistant before working her way up. Mary is so excited to lead her team, meet the clients, and help grow the Firehouse family.

When not working, Mary enjoys eating all sorts of delicious food and working out to help cancel out the calories. She has a soft spot for senior pets and knows how special they are to their families as they grow older. Her family includes her husband, three dogs, and a cat. She has two Siberian Huskies: Gambit, a senior, and Ronin, a troublemaker puppy; and a senior, three-legged Miniature Poodle named Meka. Meka is Mary’s heart dog. Her rescue cat, Fufu, is an orange tabby foster fail.

Sherry Hill

Kristen Ussery, DVM


Dr Kristen Ussery believes that pets can make even the hardest day better. She truly loves building lasting relationships with pet parents through communication and collaboration. She wants clients to feel heard, understood, and comfortable.

Clients appreciate how she explains diagnoses, lab work, and treatment plans in easy-to-understand language. They love that she focuses on their pets’ unique needs. A natural problem-solver, Dr Ussery believes there is no problem too complex for her to solve.

To help pets feel secure, she gives them lots of treats and time to adjust to the check-up. She also gets down on the floor to be at the pet’s level. Dr Ussery is Fear Free certified.

She has a passion for genetic-based medicine and enjoys learning about breed-based conditions. She also has a lot of experience with anal-related issues. She isn’t one to shy away from strange or messy issues!

Dr Ussery received a Biology Degree from the University of Central Arkansas. She then went to Louisiana State University for veterinary school. She moved to Austin as quickly as she could, and loves it here. Depending on the temperature, she is either outside riding horses, training her dog in agility courses, or playing video games with her husband in the air conditioning. She rescued her Australian Cattle Dog, Belle, from the Texas Cattle Dog Rescue during COVID, and calls her a “COVID pup.”

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